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A Ka band transmitter for deep space communication systems

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8 Author(s)
Liang Xianfeng ; Center for Space Sci. & Appl. Res., Beijing, China ; Zhang Jinzhou ; Xie Min ; Xie Chunjian
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This paper summarizes the design scheme and testing results in the development of a Ka-band transmitter for the future deep space communication systems applications in China. The integrated component of all-digital baseband data coding and modulation of the Ka band downlink transmitter for deep space communications is achieved on the Xilinx FPGA circuit. The modulation schemes of PCM/BPSK/PM, NRZ/BPSK and SRRC-QPSK are separately chosen corresponding to the code rate ranges of 16bps~20kbps, 20kbps ~200kbps and 200kbps~2Mbps by the external control commands in the circuits. 2W output power of the transmitter at 31.84GHz center frequency is obtained by a Ka band solid state power amplifier (KaSSPA).

Published in:

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on  (Volume:4 )

Date of Conference:

5-8 May 2012